
784
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
• CSCso14979
Symptoms: Distributed CEF gets disabled for a line card.
Conditions: This symptom can happen for a few reasons:
1) Heavy IPC load leading to backplane congestion causing timers (started to monitor distribution)
to time out.
2) Breakdown of IPC communication between the RP and the line card.
3) Lack of memory to install FIB updates on the line card.
Workaround: The only way to restart distributed CEF for the disabled line card is by resetting or
OIR the line card.
• CSCso15725
Symptoms: Module’s configuration not synchronized to standby supervisor if module resets while
standby is booting up.
Conditions: This bug may be seen if linecard or SPA were to reset before standby reaches standby
hot terminal state.
Workaround: Use redundancy reload peer to reset standby supervisor. On its next boot,
configuration is synchronized to standby.
• CSCso15740
Symptoms: The "set metric" clause in the continue route-map sequence is not setting metric
correctly in some particular conditions. This is also applicable in case where the nexthop setting is
done via route-map with a continue clause.
Conditions: The symptom is observed on a Cisco 12000 series router that is running Cisco IOS
Release 12.0(32)SY4. This is platform independent. This symptom occurs if the route-map has a
continue clause and the match condition does not allow the continue clause to be executed. The
following route-map sequence which has to be executed will not execute properly if the metric or
nexthop of the prefix are to be modified via the route-map.
Workaround: Avoid using "continue" in a route-map and modifying metric or nexthop via the
following route-map sequence.
• CSCso17473
Symptoms: On a Cisco 7300 series router while doing a switchover with the following HSRP
configuration, the new secondary router reloads continuously with the following error message.
"HSRP:Gi0/0.801 Grp 1 RF Encode data descriptor failed"
Conditions: This symptom is observed in a GLBP/HSRP environment. It occurs only on the native
Gigabit Ethernet or Fast Ethernet interface of a Cisco 7300 series router.
Frequency: Easily reproducible.
Trigger: Switchover.
Impact: The standby reloads continuously.
Workaround: Upgrade the Cisco IOS software.
The GE/FE ports on the standby NSE-100 and GE ports on the NPE-G100 on the Cisco 7300 do not
have SSO capability. That is, these ports will flap when the system undergoes a switchover. Only
these interfaces on a Cisco 7300 are affected.
• CSCso17733
Symptoms: Stop record not generated when PPPoA session goes down to make Multilink PPPoA
bundle come up with virtual-access interface (both normal and sub-interface).
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